MAPREDUCE-5023. History Server Web Services missing Job Counters (Ravi Prakash via tgraves)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1454157 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9369. DNS#reverseDns() can return hostname with . appended at the end. Contributed by Karthik Kambatla.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1454173 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/branch-2' into branch-2-gd
HDFS-4546. Merging 1r1454021 and r1454027 from trunk.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1454235 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4569. Merge r1454233 from trunk

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1454236 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/branch-2' into branch-2-gd
Merge remote branch 'origin/branch-2-gd' into fb-HADOOP-7435-TEST-branch-2-gd